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Comparative Cardiovascular Effectiveness of Empagliflozin Versus Dapagliflozin in Adults With Treated Type 2 Diabetes: A Target Trial Emulation

Bonnesen K, Heide-Jørgensen U, Christensen DH, Lash TL, Hennessy S, Matthews A, Pedersen L, Thomsen RW et al.

Circulation, 2024

Abstract

BACKGROUND: Empagliflozin and dapagliflozin have proven cardiovascular benefits in people with type 2 diabetes at high cardiovascular risk, but their comparative effectiveness is unknown.

METHODS: This study used nationwide, population-based Danish health registries to emulate a hypothetical target trial comparing empagliflozin versus dapagliflozin initiation, in addition to standard care, among people with treated type 2 diabetes from 2014 through 2020. The outcome was a composite of myocardial infarction, ischemic stroke, heart failure (HF), or cardiovascular death (major adverse cardiovascular event). Participants were followed until an outcome, emigration, or death occurred; 6 years after initiation; or December 31, 2021, whichever occurred first. Logistic regression was used to compute inverse probability of treatment and censoring weights, controlling for 57 potential confounders. In intention-to-treat analyses, 6-year adjusted risks, risk differences, and risk ratios, considering noncardiovascular death competing events, were estimated. Analyses were stratified by coexisting atherosclerotic cardiovascular disease and HF. A per-protocol design was performed as a secondary analysis.

RESULTS: There were 36 670 eligible empagliflozin and 20 606 eligible dapagliflozin initiators. In the intention-to-treat analysis, the adjusted 6-year absolute risk of major adverse cardiovascular event was not different between empagliflozin and dapagliflozin initiators (10.0% versus…

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